#!/usr/bin/python import os import re from scipy import ndimage, misc images = [] for root, dirnames, filenames in os.walk("."): for filename in filenames: if re.search("\.(jpg|jpeg|png)$", filename): filepath = os.path.join(root, filename) image = ndimage.imread(filepath, mode="L") image_resized = misc.imresize(image, (256, 256)) misc.imsave(filepath, image_resized)